ATC
From SimsWiki
This article is imported from the old MTS2 wiki. You can help Sims2Wiki by cleaning it up. It's original page with comments can be found at http://old_wiki.modthesims2.com/ATC
Animation Texture Collection format
Structure:
ATC (size 48 bytes) +0 DWORD Type (ATC type 0x29A5D1EC) +4 DWORD Animation file Type (FSH type) +8 DWORD Animation file Group (FSH group) +12 DWORD Animation file Instance +16 DWORD AVPF Type +20 DWORD AVPF Group +24 DWORD AVPF instance (zoom 1) +28 DWORD AVPF instance (zoom 2) +32 DWORD AVPF instance (zoom 3) +36 DWORD AVPF instance (zoom 4) +40 DWORD AVPF instance (zoom 5) +44 DWORD Number of frames in the animation file (per zoom and view)